fix: argument list too long on shells without a builtin printf

[U-L-M-S]

Type of change

• Bug fix

Description

Fixes #1906.

The reporter's shell is mksh, the /bin/sh of Android. It has no builtin printf, so printf "%s" "$_response" runs an external printf with the whole page as one argument. Linux allows 128KiB per argument, the search page is 250KiB, so it fails with Argument list too long.

Fix: a small print_page helper prints through a here-document. The shell writes that itself, so there is no limit. It is used only where whole pages are printed.

Why Termux users end up in mksh: ani-cli -U rewrites the package's shebang to #!/bin/sh, which is mksh on Android. That is a separate issue and not touched here.

Tested with mksh on Android (Termux) and in docker with mksh, dash, bash and busybox: master fails, this branch works.

Checklist

• any anime playing
• bumped version

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• next, prev, replay and select work
• -c history and continue work
• -d downloads work
• -e (select episode) aka -r (range selection) works
• -S select index works
• -q quality works
• -s syncplay works (not installed)
• -v vlc works (not installed)
• --dub and regular (sub) mode both work
• --nextep-countdown countdown to next ep works

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• -h help info is up to date
• Readme is up to date
• Man page is up to date

[port19x]

Closing this because it is caused by user error in my opinion as laid out in the linked issue.